STA,
But I think the argument is that the 325 doesn't have a good selection of bullets and that the ones that exist are low BC.
I just took a quick peek at Midway's list of 8mm bullets and, in addition to the TSX you mentioned, the only 180 gr bullets they offer are: Nosler eTips and BT's (and the BT that Nosler makes for Winchester). If the TSX doesn't shoot well out of your rifle, the remaining choices aren't super attractive--and I am more forgiving of BT's than most.
But, if the OP wants one, he should get one. I suppose many animals die each year from .325 WSM wounds. I just wouldn't get Win. Coy. Lite.
